This signature file may be used to cryptographically verify file integrity, like this:: $ gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 0xA16EB94D $ gpg --list-keys 0xA16EB94D pub 2048R/A16EB94D 2008-08-15 [expires: 2023-08-12] uid Turnkey Linux Release Key $ gpg --verify turnkey-mibew-12.0-squeeze-x86-xen.tar.bz2.sig gpg: Signature made Tue Aug 21 16:11:13 UTC 2012 using RSA key ID A16EB94D gpg: Good signature from "Turnkey Linux Release Key For your convenience we also include file checksums: * sha1sum ef57ba229c7e4056d145a9367d5df94907280a65 * md5sum 850c53a34fb926d7e653d9b931942376 You can calculate these on your end and compare to check for errors, but cryptographic verification is recommended for security reasons. -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.10 (GNU/Linux) iQEcBAABAgAGBQJQM7MYAAoJEIXCXpWhbrlNFikH/1auCvgP1mtlICoOHpqZo8c9 J25w0Mu6XDsuRkr1ee+HXEoaVbqEByULIvpnxs0/Ir+Yb1hUX1U7HIwvlKeidfOq w9Z70tEJreWzfuyQdzrGleaw21019qhQvGI837DTw+V2wqmmgf+dozdpGtdI8PYU nUgMI6eZyZIM91Q7up/4BgTdzxwMOShi1OAqCAISt0iVx5OKuWKJVtFYKLtBAlm2 fPKD5ad4RVR6rqL9HRN60qdkEdt6o9mL5BDoc/HvOuiMydyo6ysOOK1/CMAcxsU+ ww7rMTDFk7+gdxY7PRsdod7p3Ubn4vK3R4+jj1XwrUltrMqFw4d5LDqrrK6Cy5E= =aByL -----END PGP SIGNATURE-----